Ain't It Cool News has a couple video clips of an interview with LOST showrunner and main writer Damon Lindelof (seems like a really cool, unpretentious guy) here ... looks like 'ole radii is calling it correctly so far: down to 2 timelines and some will get off the island and some won't
- some will "go on a journey."
Lindelof plays it coy with regard to Desmond not being in the final cast photo but I take that to mean that Desmond dies in both realities in order to fracture the link once it is re-set to the Alt+B timeline.
Now, if he would just read my critique of his Star Trek ... they need to fix some things for the next film [click image for readable screen-cap of the review]
Some spoilery info is up ... next ep, The Candidate, seems to be focused on Jack of course [he's offered that Faustian bargain] ... and the one after that - Across the Sea - seems to deal with Jacob and MIB - and the teenage boys are them in earlier lives